Question

Explain an example in which a variable has two different addresses at different places in a program.

Answer 1

• NOTE : I have used C Language to show this
• Explanation :-
• As in the question asked that to show an example in which a variable has two Different addresses at Different places in a program.
• I choose C language to show this
• we can use Pointer variable in C to show two different addresses at Different places in a program
• Here in this example we will use a single variable to show two different addresses at different places in a program
• I have used comments to explain the code

• CODE :-

      #include<stdio.h>

      int main(){

           int x=2,y;

           y=3;

           int *ptr; //Here we use *ptr a pointer variable to show the different addresses in a program

           ptr = &x; // Here we are taking x address to the pointer variable *ptr

           printf("%x\n",ptr); //Here we are printing the *ptr means pointer variable address

           ptr = &y; // Here we are taking y address to the pointer variable *ptr

               printf("%x\n",ptr); //Here we are printing the *ptr means pointer variable address

             

/*Here we have used a one single pointer variable *ptr in two different places to get two different addresses in a program. so, It is possible to get two different addresses in two different places in a program. */

}

• CODE : -

• OUTPUT :-

• Here,The output shows us that we can have two different addresses at different places in a program with single variable(as i have used the pointer variable)

Thank You...!